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Vulnerability Details :

CVE-2026-7829

Summary
Assigner-securin
Assigner Org ID-33c584b5-0579-4c06-b2a0-8d8329fcab9c
Published At-01 Jul, 2026 | 03:33
Updated At-01 Jul, 2026 | 13:13
Rejected At-
Credits

UltraVNC repeater authenticated out-of-bounds write in rule parser via oversized token

UltraVNC repeater through 1.8.2.2 contains a post-authentication out-of-bounds write in the allow/deny rule parser. In repeater/webgui/settings.c:225-272, after strncpy_s copies a rule token into temp1[rule1] (25-byte destination) or temp2/temp3 (16-byte destination), the code unconditionally writes a NUL terminator at temp1[rule1][len] = 0 without clamping len to the destination size. When an authenticated administrator saves a rule with a token length equal to or greater than the destination size, the NUL byte is written one or more bytes past the end of the stack-allocated array, corrupting adjacent stack data. An attacker who has obtained admin credentials (including via CVE-2026-7839 default password) can trigger this to gain code execution on the repeater host.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:securin
Assigner Org ID:33c584b5-0579-4c06-b2a0-8d8329fcab9c
Published At:01 Jul, 2026 | 03:33
Updated At:01 Jul, 2026 | 13:13
Rejected At:
▼CVE Numbering Authority (CNA)
UltraVNC repeater authenticated out-of-bounds write in rule parser via oversized token

UltraVNC repeater through 1.8.2.2 contains a post-authentication out-of-bounds write in the allow/deny rule parser. In repeater/webgui/settings.c:225-272, after strncpy_s copies a rule token into temp1[rule1] (25-byte destination) or temp2/temp3 (16-byte destination), the code unconditionally writes a NUL terminator at temp1[rule1][len] = 0 without clamping len to the destination size. When an authenticated administrator saves a rule with a token length equal to or greater than the destination size, the NUL byte is written one or more bytes past the end of the stack-allocated array, corrupting adjacent stack data. An attacker who has obtained admin credentials (including via CVE-2026-7839 default password) can trigger this to gain code execution on the repeater host.

Affected Products
Vendor
uvnc
Product
UltraVNC
Modules
  • repeater
Default Status
unaffected
Versions
Affected
  • From 0 through 1.8.2.2 (custom)
Problem Types
TypeCWE IDDescription
CWECWE-787Out-of-bounds Write
Type: CWE
CWE ID: CWE-787
Description: Out-of-bounds Write
Metrics
VersionBase scoreBase severityVector
3.17.2HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Version: 3.1
Base score: 7.2
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

finder
Arjun Basnet, Securin (arjun.basnet@securin.io)
Timeline
EventDate
Vulnerability discovered during security audit2026-06-02 00:00:00
Reported to vendor (coordinated disclosure)2026-06-17 00:00:00
Planned public disclosure (90-day window)2026-09-15 00:00:00
Event: Vulnerability discovered during security audit
Date: 2026-06-02 00:00:00
Event: Reported to vendor (coordinated disclosure)
Date: 2026-06-17 00:00:00
Event: Planned public disclosure (90-day window)
Date: 2026-09-15 00:00:00
Replaced By

Rejected Reason

References
HyperlinkResource
https://uvnc.com/
vendor-advisory
https://github.com/ultravnc/UltraVNC
product
Hyperlink: https://uvnc.com/
Resource:
vendor-advisory
Hyperlink: https://github.com/ultravnc/UltraVNC
Resource:
product
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:33c584b5-0579-4c06-b2a0-8d8329fcab9c
Published At:01 Jul, 2026 | 05:16
Updated At:02 Jul, 2026 | 15:09

UltraVNC repeater through 1.8.2.2 contains a post-authentication out-of-bounds write in the allow/deny rule parser. In repeater/webgui/settings.c:225-272, after strncpy_s copies a rule token into temp1[rule1] (25-byte destination) or temp2/temp3 (16-byte destination), the code unconditionally writes a NUL terminator at temp1[rule1][len] = 0 without clamping len to the destination size. When an authenticated administrator saves a rule with a token length equal to or greater than the destination size, the NUL byte is written one or more bytes past the end of the stack-allocated array, corrupting adjacent stack data. An attacker who has obtained admin credentials (including via CVE-2026-7839 default password) can trigger this to gain code execution on the repeater host.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.17.2HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
N/A
Type: Secondary
Version: 3.1
Base score: 7.2
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Type: N/A
Version:
Base score:
Base severity: N/A
Vector:
CPE Matches

uvnc
uvnc
>>ultravnc>>Versions up to 1.8.2.2(inclusive)
cpe:2.3:a:uvnc:ultravnc:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-787Secondary33c584b5-0579-4c06-b2a0-8d8329fcab9c
CWE ID: CWE-787
Type: Secondary
Source: 33c584b5-0579-4c06-b2a0-8d8329fcab9c
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://github.com/ultravnc/UltraVNC33c584b5-0579-4c06-b2a0-8d8329fcab9c
Product
https://uvnc.com/33c584b5-0579-4c06-b2a0-8d8329fcab9c
Product
Release Notes
Hyperlink: https://github.com/ultravnc/UltraVNC
Source: 33c584b5-0579-4c06-b2a0-8d8329fcab9c
Resource:
Product
Hyperlink: https://uvnc.com/
Source: 33c584b5-0579-4c06-b2a0-8d8329fcab9c
Resource:
Product
Release Notes

Change History

0
Information is not available yet

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||
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Matching Score-4
Assigner-Talos
CVSS Score-7.2||HIGH
EPSS-1.32% / 67.33%
||
7 Day CHG~0.00%
Published-06 Jul, 2023 | 14:53
Updated-04 Nov, 2025 | 20:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple buffer overflow vulnerabilities exist in the vtysh_ubus binary of Milesight UR32L v32.3.0.5 due to the use of an unsafe sprintf pattern. A specially crafted HTTP request can lead to arbitrary code execution. An attacker with high privileges can send HTTP requests to trigger these vulnerabilities.This buffer overflow occurs in the set_openvpn_client function with the local_virtual_ip and the remote_virtual_ip variables.

Action-Not Available
Vendor-Milesight
Product-ur32l_firmwareur32lUR32Lur32l
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-25114
Matching Score-4
Assigner-Talos
ShareView Details
Matching Score-4
Assigner-Talos
CVSS Score-7.2||HIGH
EPSS-1.32% / 67.33%
||
7 Day CHG~0.00%
Published-06 Jul, 2023 | 14:53
Updated-04 Nov, 2025 | 20:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple buffer overflow vulnerabilities exist in the vtysh_ubus binary of Milesight UR32L v32.3.0.5 due to the use of an unsafe sprintf pattern. A specially crafted HTTP request can lead to arbitrary code execution. An attacker with high privileges can send HTTP requests to trigger these vulnerabilities.This buffer overflow occurs in the set_openvpn_client function with the expert_options variable.

Action-Not Available
Vendor-Milesight
Product-ur32l_firmwareur32lUR32Lur32l
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-25081
Matching Score-4
Assigner-Talos
ShareView Details
Matching Score-4
Assigner-Talos
CVSS Score-7.2||HIGH
EPSS-1.41% / 69.30%
||
7 Day CHG~0.00%
Published-06 Jul, 2023 | 14:53
Updated-04 Nov, 2025 | 20:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple buffer overflow vulnerabilities exist in the vtysh_ubus binary of Milesight UR32L v32.3.0.5 due to the use of an unsafe sprintf pattern. A specially crafted HTTP request can lead to arbitrary code execution. An attacker with high privileges can send HTTP requests to trigger these vulnerabilities.This buffer overflow occurs in the firewall_handler_set function with the src and dmz variables.

Action-Not Available
Vendor-Milesight
Product-ur32l_firmwareur32lUR32Lur32l
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2021-38517
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-6.9||MEDIUM
EPSS-0.76% / 50.70%
||
7 Day CHG~0.00%
Published-11 Aug, 2021 | 00:03
Updated-04 Aug, 2024 | 01:44
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Certain NETGEAR devices are affected by out-of-bounds reads and writes. This affects R6400 before 1.0.1.70, RAX75 before 1.0.4.120, RAX80 before 1.0.4.120, and XR300 before 1.0.3.50.

Action-Not Available
Vendor-n/aNETGEAR, Inc.
Product-xr300_firmwarerax80rax75_firmwarerax75xr300r6400r6400_firmwarerax80_firmwaren/a
CWE ID-CWE-787
Out-of-bounds Write
CWE ID-CWE-125
Out-of-bounds Read
CVE-2023-25121
Matching Score-4
Assigner-Talos
ShareView Details
Matching Score-4
Assigner-Talos
CVSS Score-7.2||HIGH
EPSS-1.32% / 67.33%
||
7 Day CHG~0.00%
Published-06 Jul, 2023 | 14:53
Updated-04 Nov, 2025 | 20:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple buffer overflow vulnerabilities exist in the vtysh_ubus binary of Milesight UR32L v32.3.0.5 due to the use of an unsafe sprintf pattern. A specially crafted HTTP request can lead to arbitrary code execution. An attacker with high privileges can send HTTP requests to trigger these vulnerabilities.This buffer overflow occurs in the set_ike_profile function with the secrets_local variable.

Action-Not Available
Vendor-Milesight
Product-ur32l_firmwareur32lUR32Lur32l
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-25092
Matching Score-4
Assigner-Talos
ShareView Details
Matching Score-4
Assigner-Talos
CVSS Score-7.2||HIGH
EPSS-1.32% / 67.33%
||
7 Day CHG~0.00%
Published-06 Jul, 2023 | 14:53
Updated-04 Nov, 2025 | 20:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple buffer overflow vulnerabilities exist in the vtysh_ubus binary of Milesight UR32L v32.3.0.5 due to the use of an unsafe sprintf pattern. A specially crafted HTTP request can lead to arbitrary code execution. An attacker with high privileges can send HTTP requests to trigger these vulnerabilities.This buffer overflow occurs in the handle_interface_acl function with the interface and out_acl variables.

Action-Not Available
Vendor-Milesight
Product-ur32l_firmwareur32lUR32Lur32l
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2021-38523
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-6.9||MEDIUM
EPSS-0.80% / 52.28%
||
7 Day CHG~0.00%
Published-11 Aug, 2021 | 00:01
Updated-04 Aug, 2024 | 01:44
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

NETGEAR R6400 devices before 1.0.1.70 are affected by a stack-based buffer overflow by an authenticated user.

Action-Not Available
Vendor-n/aNETGEAR, Inc.
Product-r6400r6400_firmwaren/a
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-25102
Matching Score-4
Assigner-Talos
ShareView Details
Matching Score-4
Assigner-Talos
CVSS Score-7.2||HIGH
EPSS-1.32% / 67.33%
||
7 Day CHG~0.00%
Published-06 Jul, 2023 | 14:53
Updated-04 Nov, 2025 | 20:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple buffer overflow vulnerabilities exist in the vtysh_ubus binary of Milesight UR32L v32.3.0.5 due to the use of an unsafe sprintf pattern. A specially crafted HTTP request can lead to arbitrary code execution. An attacker with high privileges can send HTTP requests to trigger these vulnerabilities.This buffer overflow occurs in the set_dmvpn function with the hub_ip and the hub_gre_ip variables.

Action-Not Available
Vendor-Milesight
Product-ur32l_firmwareur32lUR32Lur32l
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-25109
Matching Score-4
Assigner-Talos
ShareView Details
Matching Score-4
Assigner-Talos
CVSS Score-7.2||HIGH
EPSS-1.32% / 67.34%
||
7 Day CHG~0.00%
Published-06 Jul, 2023 | 14:53
Updated-04 Nov, 2025 | 20:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple buffer overflow vulnerabilities exist in the vtysh_ubus binary of Milesight UR32L v32.3.0.5 due to the use of an unsafe sprintf pattern. A specially crafted HTTP request can lead to arbitrary code execution. An attacker with high privileges can send HTTP requests to trigger these vulnerabilities.This buffer overflow occurs in the set_gre function with the local_ip variable.

Action-Not Available
Vendor-Milesight
Product-ur32l_firmwareur32lUR32Lur32l
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-25108
Matching Score-4
Assigner-Talos
ShareView Details
Matching Score-4
Assigner-Talos
CVSS Score-7.2||HIGH
EPSS-1.32% / 67.34%
||
7 Day CHG~0.00%
Published-06 Jul, 2023 | 14:53
Updated-04 Nov, 2025 | 20:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple buffer overflow vulnerabilities exist in the vtysh_ubus binary of Milesight UR32L v32.3.0.5 due to the use of an unsafe sprintf pattern. A specially crafted HTTP request can lead to arbitrary code execution. An attacker with high privileges can send HTTP requests to trigger these vulnerabilities.This buffer overflow occurs in the set_gre function with the remote_ip variable.

Action-Not Available
Vendor-Milesight
Product-ur32l_firmwareur32lUR32Lur32l
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-25107
Matching Score-4
Assigner-Talos
ShareView Details
Matching Score-4
Assigner-Talos
CVSS Score-7.2||HIGH
EPSS-1.32% / 67.34%
||
7 Day CHG~0.00%
Published-06 Jul, 2023 | 14:53
Updated-04 Nov, 2025 | 20:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple buffer overflow vulnerabilities exist in the vtysh_ubus binary of Milesight UR32L v32.3.0.5 due to the use of an unsafe sprintf pattern. A specially crafted HTTP request can lead to arbitrary code execution. An attacker with high privileges can send HTTP requests to trigger these vulnerabilities.This buffer overflow occurs in the set_gre function with the remote_subnet and the remote_mask variables.

Action-Not Available
Vendor-Milesight
Product-ur32l_firmwareur32lUR32Lur32l
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-25099
Matching Score-4
Assigner-Talos
ShareView Details
Matching Score-4
Assigner-Talos
CVSS Score-7.2||HIGH
EPSS-1.32% / 67.33%
||
7 Day CHG~0.00%
Published-06 Jul, 2023 | 14:53
Updated-04 Nov, 2025 | 20:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple buffer overflow vulnerabilities exist in the vtysh_ubus binary of Milesight UR32L v32.3.0.5 due to the use of an unsafe sprintf pattern. A specially crafted HTTP request can lead to arbitrary code execution. An attacker with high privileges can send HTTP requests to trigger these vulnerabilities.This buffer overflow occurs in the set_qos function with the dest variable.

Action-Not Available
Vendor-Milesight
Product-ur32l_firmwareur32lUR32Lur32l
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-41273
Matching Score-4
Assigner-QNAP Systems, Inc.
ShareView Details
Matching Score-4
Assigner-QNAP Systems, Inc.
CVSS Score-5.5||MEDIUM
EPSS-0.56% / 42.24%
||
7 Day CHG~0.00%
Published-02 Feb, 2024 | 16:03
Updated-02 Aug, 2024 | 18:54
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
QTS, QuTS hero, QuTScloud

A heap-based buffer overflow vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated administrators to execute code via a network. We have already fixed the vulnerability in the following versions: QTS 5.1.2.2533 build 20230926 and later QuTS hero h5.1.2.2534 build 20230927 and later QuTScloud c5.1.5.2651 and later

Action-Not Available
Vendor-QNAP Systems, Inc.
Product-quts_heroqutscloudqtsQuTScloudQuTS heroQTS
CWE ID-CWE-122
Heap-based Buffer Overflow
CWE ID-CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-25106
Matching Score-4
Assigner-Talos
ShareView Details
Matching Score-4
Assigner-Talos
CVSS Score-7.2||HIGH
EPSS-1.32% / 67.34%
||
7 Day CHG~0.00%
Published-06 Jul, 2023 | 14:53
Updated-04 Nov, 2025 | 20:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple buffer overflow vulnerabilities exist in the vtysh_ubus binary of Milesight UR32L v32.3.0.5 due to the use of an unsafe sprintf pattern. A specially crafted HTTP request can lead to arbitrary code execution. An attacker with high privileges can send HTTP requests to trigger these vulnerabilities.This buffer overflow occurs in the set_gre function with the local_virtual_ip and the local_virtual_mask variables.

Action-Not Available
Vendor-Milesight
Product-ur32l_firmwareur32lUR32Lur32l
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-25115
Matching Score-4
Assigner-Talos
ShareView Details
Matching Score-4
Assigner-Talos
CVSS Score-7.2||HIGH
EPSS-1.32% / 67.33%
||
7 Day CHG~0.00%
Published-06 Jul, 2023 | 14:53
Updated-04 Nov, 2025 | 20:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple buffer overflow vulnerabilities exist in the vtysh_ubus binary of Milesight UR32L v32.3.0.5 due to the use of an unsafe sprintf pattern. A specially crafted HTTP request can lead to arbitrary code execution. An attacker with high privileges can send HTTP requests to trigger these vulnerabilities.This buffer overflow occurs in the set_openvpn_client function with the remote_ip and the port variables.

Action-Not Available
Vendor-Milesight
Product-ur32l_firmwareur32lUR32Lur32l
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-25089
Matching Score-4
Assigner-Talos
ShareView Details
Matching Score-4
Assigner-Talos
CVSS Score-7.2||HIGH
EPSS-1.32% / 67.33%
||
7 Day CHG~0.00%
Published-06 Jul, 2023 | 14:53
Updated-04 Nov, 2025 | 20:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple buffer overflow vulnerabilities exist in the vtysh_ubus binary of Milesight UR32L v32.3.0.5 due to the use of an unsafe sprintf pattern. A specially crafted HTTP request can lead to arbitrary code execution. An attacker with high privileges can send HTTP requests to trigger these vulnerabilities.This buffer overflow occurs in the handle_interface_acl function with the interface variable when in_acl is -1.

Action-Not Available
Vendor-Milesight
Product-ur32l_firmwareur32lUR32Lur32l
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-25119
Matching Score-4
Assigner-Talos
ShareView Details
Matching Score-4
Assigner-Talos
CVSS Score-7.2||HIGH
EPSS-1.32% / 67.33%
||
7 Day CHG~0.00%
Published-06 Jul, 2023 | 14:53
Updated-04 Nov, 2025 | 20:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple buffer overflow vulnerabilities exist in the vtysh_ubus binary of Milesight UR32L v32.3.0.5 due to the use of an unsafe sprintf pattern. A specially crafted HTTP request can lead to arbitrary code execution. An attacker with high privileges can send HTTP requests to trigger these vulnerabilities.This buffer overflow occurs in the set_pptp function with the remote_subnet and the remote_mask variables.

Action-Not Available
Vendor-Milesight
Product-ur32l_firmwareur32lUR32Lur32l
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-25103
Matching Score-4
Assigner-Talos
ShareView Details
Matching Score-4
Assigner-Talos
CVSS Score-7.2||HIGH
EPSS-1.32% / 67.33%
||
7 Day CHG~0.00%
Published-06 Jul, 2023 | 14:53
Updated-04 Nov, 2025 | 20:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple buffer overflow vulnerabilities exist in the vtysh_ubus binary of Milesight UR32L v32.3.0.5 due to the use of an unsafe sprintf pattern. A specially crafted HTTP request can lead to arbitrary code execution. An attacker with high privileges can send HTTP requests to trigger these vulnerabilities.This buffer overflow occurs in the set_dmvpn function with the gre_ip and the gre_mask variables.

Action-Not Available
Vendor-Milesight
Product-ur32l_firmwareur32lUR32Lur32l
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-25083
Matching Score-4
Assigner-Talos
ShareView Details
Matching Score-4
Assigner-Talos
CVSS Score-7.2||HIGH
EPSS-1.32% / 67.33%
||
7 Day CHG~0.00%
Published-06 Jul, 2023 | 14:53
Updated-04 Nov, 2025 | 20:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple buffer overflow vulnerabilities exist in the vtysh_ubus binary of Milesight UR32L v32.3.0.5 due to the use of an unsafe sprintf pattern. A specially crafted HTTP request can lead to arbitrary code execution. An attacker with high privileges can send HTTP requests to trigger these vulnerabilities.This buffer overflow occurs in the firewall_handler_set function with the ip and mac variables.

Action-Not Available
Vendor-Milesight
Product-ur32l_firmwareur32lUR32Lur32l
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-25097
Matching Score-4
Assigner-Talos
ShareView Details
Matching Score-4
Assigner-Talos
CVSS Score-7.2||HIGH
EPSS-1.32% / 67.33%
||
7 Day CHG~0.00%
Published-06 Jul, 2023 | 14:53
Updated-04 Nov, 2025 | 20:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple buffer overflow vulnerabilities exist in the vtysh_ubus binary of Milesight UR32L v32.3.0.5 due to the use of an unsafe sprintf pattern. A specially crafted HTTP request can lead to arbitrary code execution. An attacker with high privileges can send HTTP requests to trigger these vulnerabilities.This buffer overflow occurs in the set_qos function with the attach_class variable.

Action-Not Available
Vendor-Milesight
Product-ur32l_firmwareur32lUR32Lur32l
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-25091
Matching Score-4
Assigner-Talos
ShareView Details
Matching Score-4
Assigner-Talos
CVSS Score-7.2||HIGH
EPSS-1.32% / 67.34%
||
7 Day CHG~0.00%
Published-06 Jul, 2023 | 14:53
Updated-04 Nov, 2025 | 20:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple buffer overflow vulnerabilities exist in the vtysh_ubus binary of Milesight UR32L v32.3.0.5 due to the use of an unsafe sprintf pattern. A specially crafted HTTP request can lead to arbitrary code execution. An attacker with high privileges can send HTTP requests to trigger these vulnerabilities.This buffer overflow occurs in the handle_interface_acl function with the interface variable when out_acl is -1.

Action-Not Available
Vendor-Milesight
Product-ur32l_firmwareur32lUR32Lur32l
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-25084
Matching Score-4
Assigner-Talos
ShareView Details
Matching Score-4
Assigner-Talos
CVSS Score-7.2||HIGH
EPSS-1.32% / 67.34%
||
7 Day CHG~0.00%
Published-06 Jul, 2023 | 14:53
Updated-04 Nov, 2025 | 20:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple buffer overflow vulnerabilities exist in the vtysh_ubus binary of Milesight UR32L v32.3.0.5 due to the use of an unsafe sprintf pattern. A specially crafted HTTP request can lead to arbitrary code execution. An attacker with high privileges can send HTTP requests to trigger these vulnerabilities.This buffer overflow occurs in the firewall_handler_set function with the ip, mac and description variables.

Action-Not Available
Vendor-Milesight
Product-ur32l_firmwareur32lUR32Lur32l
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2021-38522
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-6.8||MEDIUM
EPSS-1.22% / 64.98%
||
7 Day CHG~0.00%
Published-11 Aug, 2021 | 00:02
Updated-04 Aug, 2024 | 01:44
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

NETGEAR R6400 devices before 1.0.1.52 are affected by a stack-based buffer overflow by an authenticated user.

Action-Not Available
Vendor-n/aNETGEAR, Inc.
Product-r6400r6400_firmwaren/a
CWE ID-CWE-787
Out-of-bounds Write
CVE-2026-2567
Matching Score-4
Assigner-VulDB
ShareView Details
Matching Score-4
Assigner-VulDB
CVSS Score-8.6||HIGH
EPSS-0.66% / 47.14%
||
7 Day CHG~0.00%
Published-16 Feb, 2026 | 17:32
Updated-23 Feb, 2026 | 10:13
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Wavlink WL-NU516U1 nas.cgi sub_401218 stack-based overflow

A vulnerability was detected in Wavlink WL-NU516U1 20251208. This vulnerability affects the function sub_401218 of the file /cgi-bin/nas.cgi. Performing a manipulation of the argument User1Passwd results in stack-based buffer overflow. The attack may be initiated remotely. The exploit is now public and may be used.

Action-Not Available
Vendor-WAVLINK Technology Ltd.
Product-wl-nu516u1wl-nu516u1_firmwareWL-NU516U1
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2024-0533
Matching Score-4
Assigner-VulDB
ShareView Details
Matching Score-4
Assigner-VulDB
CVSS Score-7.2||HIGH
EPSS-1.73% / 74.84%
||
7 Day CHG~0.00%
Published-15 Jan, 2024 | 02:31
Updated-13 Jun, 2025 | 19:09
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Tenda A15 Web-based Management Interface SetOnlineDevName stack-based overflow

A vulnerability was found in Tenda A15 15.13.07.13. It has been rated as critical. This issue affects some unknown processing of the file /goform/SetOnlineDevName of the component Web-based Management Interface. The manipulation of the argument devName leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-250703. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Action-Not Available
Vendor-Tenda Technology Co., Ltd.
Product-a15a15_firmwareA15
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2021-38525
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-6.8||MEDIUM
EPSS-1.02% / 59.15%
||
7 Day CHG~0.00%
Published-11 Aug, 2021 | 00:01
Updated-04 Aug, 2024 | 01:44
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects D3600 before 1.0.0.76, D6000 before 1.0.0.76, D6200 before 1.1.00.36, D7000 before 1.0.1.70, EX6200v2 before 1.0.1.78, EX7000 before 1.0.1.78, EX8000 before 1.0.1.186, JR6150 before 1.0.1.18, PR2000 before 1.0.0.28, R6020 before 1.0.0.42, R6050 before 1.0.1.18, R6080 before 1.0.0.42, R6120 before 1.0.0.46, R6220 before 1.1.0.80, R6260 before 1.1.0.64, R6300v2 before 1.0.4.34, R6700 before 1.0.2.6, R6700v2 before 1.2.0.36, R6800 before 1.2.0.36, R6900 before 1.0.2.4, R6900P before 1.3.1.64, R6900v2 before 1.2.0.36, R7000 before 1.0.9.42, R7000P before 1.3.1.64, R7800 before 1.0.2.60, R8900 before 1.0.4.12, R9000 before 1.0.4.12, and XR500 before 2.3.2.40.

Action-Not Available
Vendor-n/aNETGEAR, Inc.
Product-d6000_firmwarer6120r8900_firmwarer6220_firmwarepr2000r6080_firmwareex7000ex6200r6900pex8000r6120_firmwarer6900p_firmwared3600_firmwarer6800r6050pr2000_firmwarer6260_firmwarer6260r7000_firmwarer6220r6020d3600xr500_firmwarer6300_firmwarer6020_firmwarexr500r7000p_firmwared7000ex8000_firmwarer8900r9000_firmwarer6080d7000_firmwarer6700r7000d6000ex6200_firmwarer6900r7000pr9000d6200_firmwarer6900_firmwarer6050_firmwarer7800d6200jr6150_firmwarejr6150ex7000_firmwarer6300r7800_firmwarer6700_firmwarer6800_firmwaren/a
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-25122
Matching Score-4
Assigner-Talos
ShareView Details
Matching Score-4
Assigner-Talos
CVSS Score-7.2||HIGH
EPSS-1.32% / 67.33%
||
7 Day CHG~0.00%
Published-06 Jul, 2023 | 14:53
Updated-04 Nov, 2025 | 20:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple buffer overflow vulnerabilities exist in the vtysh_ubus binary of Milesight UR32L v32.3.0.5 due to the use of an unsafe sprintf pattern. A specially crafted HTTP request can lead to arbitrary code execution. An attacker with high privileges can send HTTP requests to trigger these vulnerabilities.This buffer overflow occurs in the set_openvpn_client function with the old_remote_subnet and the old_remote_mask variables.

Action-Not Available
Vendor-Milesight
Product-ur32l_firmwareur32lUR32Lur32l
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2024-0532
Matching Score-4
Assigner-VulDB
ShareView Details
Matching Score-4
Assigner-VulDB
CVSS Score-8.6||HIGH
EPSS-1.76% / 75.28%
||
7 Day CHG~0.00%
Published-15 Jan, 2024 | 02:00
Updated-14 May, 2025 | 14:40
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Tenda A15 Web-based Management Interface WifiExtraSet set_repeat5 stack-based overflow

A vulnerability was found in Tenda A15 15.13.07.13. It has been declared as critical. This vulnerability affects the function set_repeat5 of the file /goform/WifiExtraSet of the component Web-based Management Interface. The manipulation of the argument wpapsk_crypto2_4g/wpapsk_crypto5g leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Action-Not Available
Vendor-Tenda Technology Co., Ltd.
Product-a15a15_firmwareA15
CWE ID-CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-25095
Matching Score-4
Assigner-Talos
ShareView Details
Matching Score-4
Assigner-Talos
CVSS Score-7.2||HIGH
EPSS-1.32% / 67.34%
||
7 Day CHG~0.00%
Published-06 Jul, 2023 | 14:53
Updated-04 Nov, 2025 | 20:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple buffer overflow vulnerabilities exist in the vtysh_ubus binary of Milesight UR32L v32.3.0.5 due to the use of an unsafe sprintf pattern. A specially crafted HTTP request can lead to arbitrary code execution. An attacker with high privileges can send HTTP requests to trigger these vulnerabilities.This buffer overflow occurs in the set_qos function with the rule_name variable with two possible format strings that represent negated commands.

Action-Not Available
Vendor-Milesight
Product-ur32l_firmwareur32lUR32Lur32l
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2021-36347
Matching Score-4
Assigner-Dell
ShareView Details
Matching Score-4
Assigner-Dell
CVSS Score-6.2||MEDIUM
EPSS-2.40% / 81.98%
||
7 Day CHG~0.00%
Published-25 Jan, 2022 | 22:15
Updated-16 Sep, 2024 | 19:45
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

iDRAC9 versions prior to 5.00.20.00 and iDRAC8 versions prior to 2.82.82.82 contain a stack-based buffer overflow vulnerability. An authenticated remote attacker with high privileges could potentially exploit this vulnerability to control process execution and gain access to the iDRAC operating system.

Action-Not Available
Vendor-Dell Inc.
Product-integrated_dell_remote_access_controller_9integrated_dell_remote_access_controller_8_firmwareintegrated_dell_remote_access_controller_8integrated_dell_remote_access_controller_9_firmwareIntegrated Dell Remote Access Controller (iDRAC)
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-25110
Matching Score-4
Assigner-Talos
ShareView Details
Matching Score-4
Assigner-Talos
CVSS Score-7.2||HIGH
EPSS-1.32% / 67.34%
||
7 Day CHG~0.00%
Published-06 Jul, 2023 | 14:53
Updated-04 Nov, 2025 | 20:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple buffer overflow vulnerabilities exist in the vtysh_ubus binary of Milesight UR32L v32.3.0.5 due to the use of an unsafe sprintf pattern. A specially crafted HTTP request can lead to arbitrary code execution. An attacker with high privileges can send HTTP requests to trigger these vulnerabilities.This buffer overflow occurs in the set_gre function with the remote_virtual_ip variable.

Action-Not Available
Vendor-Milesight
Product-ur32l_firmwareur32lUR32Lur32l
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2026-25790
Matching Score-4
Assigner-GitHub, Inc.
ShareView Details
Matching Score-4
Assigner-GitHub, Inc.
CVSS Score-4.9||MEDIUM
EPSS-0.39% / 30.85%
||
7 Day CHG~0.00%
Published-17 Mar, 2026 | 18:41
Updated-19 Mar, 2026 | 17:14
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Wazuh has Stack-Based Buffer Overflow in Security Configuration Assessment JSON Parser

Wazuh is a free and open source platform used for threat prevention, detection, and response. Starting in version 3.9.0 and prior to version 4.14.3, multiple stack-based buffer overflows exist in the Security Configuration Assessment (SCA) decoder (`wazuh-analysisd`). The use of `sprintf` with a floating-point (`%lf`) format specifier on a fixed-size 128-byte buffer allows a remote attacker to overflow the stack. A specially crafted JSON event can trigger this overflow, leading to a denial of service (crash) or potential RCE on the Wazuh manager. The vulnerability is located in `/src/analysisd/decoders/security_configuration_assessment.c`, within the `FillScanInfo` and `FillCheckEventInfo` functions. In multiple locations, a 128-byte buffer (`char value[OS_SIZE_128];`) is allocated on the stack to hold the string representation of a number from a JSON event. The code checks if the number is an integer or a double. If it's a double, it uses `sprintf(value, "%lf", ...)` to perform the conversion. This `sprintf` call is unbounded. If a floating-point number with a large exponent (e.g., `1.0e150`) is provided, `sprintf` will attempt to write its full string representation (a "1" followed by 150 zeros), which is larger than the 128-byte buffer, corrupting the stack. Version 4.14.3 patches the issue.

Action-Not Available
Vendor-Wazuh, Inc.
Product-wazuhwazuh
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-25100
Matching Score-4
Assigner-Talos
ShareView Details
Matching Score-4
Assigner-Talos
CVSS Score-7.2||HIGH
EPSS-1.32% / 67.33%
||
7 Day CHG~0.00%
Published-06 Jul, 2023 | 14:53
Updated-04 Nov, 2025 | 20:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Multiple buffer overflow vulnerabilities exist in the vtysh_ubus binary of Milesight UR32L v32.3.0.5 due to the use of an unsafe sprintf pattern. A specially crafted HTTP request can lead to arbitrary code execution. An attacker with high privileges can send HTTP requests to trigger these vulnerabilities.This buffer overflow occurs in the set_qos function with the default_class variable.

Action-Not Available
Vendor-Milesight
Product-ur32l_firmwareur32lUR32Lur32l
CWE ID-CWE-121
Stack-based Buffer Overflow
CWE ID-CWE-787
Out-of-bounds Write
CVE-2023-35649
Matching Score-4
Assigner-Android (associated with Google Inc. or Open Handset Alliance)
ShareView Details
Matching Score-4
Assigner-Android (associated with Google Inc. or Open Handset Alliance)
CVSS Score-7.2||HIGH
EPSS-0.43% / 34.92%
||
7 Day CHG~0.00%
Published-11 Oct, 2023 | 19:20
Updated-18 Sep, 2024 | 16:00
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

In several functions of Exynos modem files, there is a possible out of bounds write due to a missing bounds check. This could lead to remote code execution with System execution privileges needed. User interaction is not needed for exploitation.

Action-Not Available
Vendor-Google LLC
Product-androidAndroid
CWE ID-CWE-787
Out-of-bounds Write
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